We use the natural zeolite clinoptilolite as the sensitive element in a plasticized PVC membrane: High Electron Mobility Transistor Research Paper, UM, Malaysia
University | University of Michigan (UM) |
Subject | High Electron Mobility Transistor |
We use the natural zeolite clinoptilolite as the sensitive element in a plasticized PVC membrane. Separated, a sample pool and a reference pool in a water-gated SnO2 thin-film transistor (SnO2 WGTFT) with such a membrane leads to membrane potential, and thus transistor threshold shift in response to the common drinking water pollutants Pb2þ or Cu2þ in the sample pool. Threshold shift with ion concentration, c, follows a Langmuir–Freundlich (LF) characteristic.
As the LF characteristic shows the steepest slope in the limit c → 0, this opens a window to limits-of-detection (LoDs) far below the ‘action levels’ of the ‘lead-and-copper rule’ for drinking water: Pb2þ: LoD 0.9 nM vs 72 nM action level, Cu2þ: LoD 14 nM vs 20.5 μM action level. LoDs are far lower than for membranes using organic macrocycles as their sensitive elements.
Threshold shifts at the lead and copper action levels are more significant than shifts in response to variations in the concentration of non-toxic co-cations, and we discuss in detail how to moderate interference. The selective response to lead and copper qualifies clinoptilolite-sensitized WGTFTs as a low-footprint sensor technology for monitoring the lead-and-copper rule and confirming the effectiveness of attempts to extract lead and copper from
water.
Are You Searching Answer of this Question? Request Malaysian Writers to Write a plagiarism Free Copy for You.
Get Help By Expert
Need to help with your homework in Malaysia? No need to worry, Malaysia Assignment Help! We understand the challenges students face in managing their coursework and meeting deadlines, which is why we offer expert help with assignments and homework in a wide range of subjects. Our team of experienced tutors and writers are dedicated to providing personalized support to each and every student, ensuring that you receive the help you need to achieve your academic goals. Contact us today to learn more about how we can help with your assignments and homework in Malaysia!
Recent Solved Questions
- Mr. Aamir is a 45-year-old physiotherapist who has had a history of occasional stiffness and pain in the lower back region for the past 3 years: Physiotherapy Practice in Musculoskeletal Assignment, MU, Malaysia
- ECW1101: Explain why the world price of palm oil increases as the result of the impact of Russia-Ukraine conflict: Introductory microeconomics Essay, MUM, Malaysia
- MBA6073: Bank Negara Malaysia said today household debt, as measured by the household debt-to-gross domestic product ratio: Managerial Economics Assignment, HU, Malaysia
- LEI2043: Based on the above article, kindly explain and elaborate what is the extent of discretionary powers of a police officer: CURRENT ISSUES IN LAW ENFORCEMENT Assignment, SUC, Malaysia
- ABPR1103: A psychologist studied the number of hours a worker sleeps at night and the number of errors made in a given task: Statistics for Psychology Assignment, OUM, Malaysia
- Pilihan raya adalah mekanisme utama dalam membuktikan sistem demokrasi dipraktikkan di sesebuah negara: Kenegaraan Dan Pembangunan Mutakhir Report, UTHM, Malaysia
- EER3534: Assuming you are an estate agent/negotiator in Klang Valley and Your firm has been appointed as an exclusive agency firm to do marketing: CPD WORKSHOP Assignment, ICI, Malaysia
- XBLR3103 OSH Legislation Assignment – OUM
- During the classroom presentation, you were introduced to a number of examples of businesses ideas: Law Assignment, OUM, Malaysia
- CBS1233: Select a Malaysian company that is operating domestically and that wishes to move internationally: Introduction to marketing Assignment, SC, Malaysia